A Montreal summer, a heat pump breakdown to be resolved quickly
In the middle of July, a client living in the Plateau-Mont-Royal region contacted us after noticing that his Goodman wall-mounted heat pump was no longer cooling his apartment, despite normal operating noises outside. On his wooden balcony, the outdoor unit appeared intact, but a technical detail invisible to the naked eye would soon explain the loss of performance.
At AirGreen , we know that a device that appears to be running “normally” may be hiding a critical internal imbalance. That’s why our technicians always perform a complete diagnosis , beyond appearances.
Unit Inspection and Diagnosis
Upon our arrival, we inspected the Goodman outdoor unit installed on the balcony, a feature typical of buildings in the Plateau. Access was restricted, but thanks to our portable tools, adapted to urban environments, we were able to:
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A pressure reading on the refrigerant circuit , revealing an abnormally low level.
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A visual inspection of the coil , where a slight oily deposit betrayed the presence of a micro-leak of refrigerant .
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A check of the external fan , which was operating normally, ensuring good heat dissipation.
Steps of repair
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Isolation of the circuit and safe recovery of the remaining refrigerant fluid.
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UV tracer leak detection , confirming seepage at a flare connection between the compressor and the liquid tube.
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Cleaning and tightening of the fitting , followed by a silver sealing solder .
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Nitrogen pressure test for 30 minutes to validate the repair.
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Complete recharge with R-410A refrigerant , calibrated to Goodman specifications.
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Restart and check the temperature delta between the indoor air inlet and outlet.
Results obtained
Upon restart, the temperature difference returned to 11°C , demonstrating optimal operation. The heat pump quickly cooled the apartment, and the client felt an immediate improvement in comfort.
Additionally, our measurements confirmed a normalized energy efficiency , indicating that the compressor had not suffered any damage despite the partial loss of gas.
A typical intervention in an urban environment
Installations located on balconies or terraces in condominiums often present particular challenges:
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Vibrations due to light supports.
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Exposure to sunlight which increases the operating temperature.
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Accessible connections subject to thermal variations leading to premature leaks.
Our technicians are trained to work in these conditions, without disturbing neighbors or damaging fragile surfaces.
Prevention: How to avoid a loss of performance on your wall-mounted heat pump
We advise all owners of Goodman and other brands of appliances:
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Schedule an annual refrigerant level check .
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Have the condenser cleaned at the end of spring to remove urban dust.
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Never ignore low performance or unusual noise, even if the unit appears to be working.
Regular maintenance by AirGreen not only prevents micro-leaks, but also ensures increased longevity of the compressor and electrical components.
AirGreen expertise
Our team serves the entire Greater Montreal area, including Montreal, Laval, Longueuil, the North Shore, and the South Shore . We service all major brands of wall-mounted heat pumps— Goodman, Gree, Fujitsu, Sharp, Midea, Mitsubishi, Daikin, and more —for fast, clean, and long-lasting repairs.
We exclusively use EPA certified tools and refrigerants that comply with Quebec environmental standards , guaranteeing the safety of the home and the environment.
Conclusion
This Goodman wall-mounted heat pump repair in Plateau-Mont-Royal demonstrates the importance of accurate diagnosis and professional intervention. By locating and repairing an invisible micro-leak, AirGreen restored this system to its original efficiency, ensuring freshness, performance, and peace of mind on hot Montreal days.